Siv guards the ancient treasure, awaiting its true master. Whomever can best her is worthy of its vast wealth and her undying loyalty. The cache is not limited to the golden coins, as Siv herself is also part of it.

However, none able to resist her might have appeared. Bound by her mission, she continues to wait as millennia pass, enduring the inevitable loneliness.

(Shimmer) Sparkling Scales Siv is able to special evolve with Silver Shimmering Pixie Dust before the end of the card pack promotion. This allows for a maximum skill of 12, which conveys a higher ATK/DEF and extra damage to regular bosses of the Fathoms Below raid event.